Klein told Cooper was she hesitant to believe one of the students was sincere.

“Even if he wasn’t picking on me, it was something else,” she said. “So I just don’t think I would believe anything Josh had to say.”

It all started when one of the students uploaded a 10-minute video of the verbal assault to YouTube on Tuesday. Several students can be heard taunting Klein, a bus monitor for the Greece School District in Rochester, N.Y., who is ultimately driven to tears, ABC News reported.

A vacation fund for Klein set up by the website, indiegogo.com, has raised nearly $480,000 so far, exceeding the original $5,000 goal.

“We have a cellphone of one of the boys and he’s received more than 1,000 missed calls and more than 1,000 text messages threatening him,” Greece police Capt. Steve Chatterton told the Rochester newspaper. “Threats to overcome threats do no good.”